(declare (notinline slot-value))
a))
+;;; from CLHS 7.6.5.1
+(defclass character-class () ((char :initarg :char)))
+(defclass picture-class () ((glyph :initarg :glyph)))
+(defclass character-picture-class (character-class picture-class) ())
+
+(defmethod width ((c character-class) &key font) font)
+(defmethod width ((p picture-class) &key pixel-size) pixel-size)
+
+(assert (raises-error?
+ (width (make-instance 'character-class :char #\Q)
+ :font 'baskerville :pixel-size 10)
+ program-error))
+(assert (raises-error?
+ (width (make-instance 'picture-class :glyph #\Q)
+ :font 'baskerville :pixel-size 10)
+ program-error))
+(assert (eq (width (make-instance 'character-picture-class :char #\Q)
+ :font 'baskerville :pixel-size 10)
+ 'baskerville))
+
+;;; class redefinition shouldn't give any warnings, in the usual case
+(defclass about-to-be-redefined () ((some-slot :accessor some-slot)))
+(handler-bind ((warning #'error))
+ (defclass about-to-be-redefined () ((some-slot :accessor some-slot))))
+
+;;; attempts to add accessorish methods to generic functions with more
+;;; complex lambda lists should fail
+(defgeneric accessoroid (object &key &allow-other-keys))
+(assert (raises-error?
+ (defclass accessoroid-class () ((slot :accessor accessoroid)))
+ program-error))
+
;;;; success
(sb-ext:quit :unix-status 104)